the un estimates america has 88 guns for every 100 residents. guns are involved in about 30 murders per million residents. the contrast with europe is dramatic. britain has just 6.2 tons per hundred and less than one gun murder per million. germany has about 30 firearms per 100 residents. france even more, but relatively few gun murders. in germany, the high number of guns is explained by the popularity of sports shooting clubs, and france has many hunters, but europe has much tighter laws regulating what kinds of guns are available and who may purchase them. >> gun control could become an even trickier issue, thanks to a new gadget that has the tech world buzzing. >> 3-d printers are being hailed as the next big thing after the internet, bringing manufacturing to the masses and meeting you just have to download a file to make almost any kind of product. >> yes, but what if that kind of product includes guns? next up, we need a man who wants to use digital download to make his own assault weapons. >> science fiction has become reality. all it ta

the un estimates america has 88 guns for every 100 residents. guns are involved in about 30 murders per million residents. the contrast with europe is dramatic. britain has just 6.2 tons per hundred and less than one gun murder per million. germany has about 30 firearms per 100 residents. france even more, but relatively few gun murders. in germany, the high number of guns is explained by the popularity of sports shooting clubs, and france has many hunters, but europe has much tighter laws regulating what kinds of guns are available and who may purchase them. >> gun control could become an even trickier issue, thanks to a new gadget that has the tech world buzzing. >> 3-d printers are being hailed as the next big thing after the internet, bringing manufacturing to the masses and meeting you just have to download a file to make almost any kind of product. >> yes, but what if that kind of product includes guns? next up, we need a man who wants to use digital download to make his own assault weapons. >> science fiction has become reality. all it ta